lol am I the only one that likes the hks dragger

 

Its easy to misunderstand the what CT says on their website.

http://www.ct-engineering.com/store/240111.html

The stock exhaust is pretty free-flowing. What they are saying is that they make 6-8 hp with the axlebacks, but installing a b-pipe shows no gains.

 

yea so the cans do make a bit of a difference technically.

so it's all bark

 

might mean when you use a CT header maybe I dunno, but I do know the cl exhaust is not restrictive whatsoever.

Yeah but most exhaust is mainly for tone, except boosted applications.

 

no i love mine.

 

I wouldnt say its not restrictive what-so-ever. Its 2.25", the cat sucks, and the stamped y-split to the mufflers is garbage. Not only that, but the bends in the piping from the b-pipe to the mufflers is way too drastic. Upgrade to 2.5" piping all the way back including a 2.5" cat and a real welded y-split and you'll see gains, I guarantee it.

 

High end, but you'll likely loose low end going bigger piping all the way. Unless your FI.

 

+1

 

I dont see you loosing too much on the low end, not with 2.5". With 3", absolutely.

 

Forgot to add, when dealing with our style of exhaust, you dont need the muffler pipe diameter to match the rest of the piping (i.e.- 2.5" piping doesnt need to go into a 2.5" muffler).

Basically, figure out the surface area (in my example, we'll use 2.5") and divide by two. Thats 1.25". Try to get a Y pipe that goes from 2.5" in to no smaller then 1.25" out (2.5" to 2" = good; 2.5" to 1" = bad) Do the same for the mufflers. As long as the surface area is the same or larger, you wont cause a restriction.

 

^^^^ so i COULD get the xlr8 cat, then upgrader the piping fom the mid muffler to the exhaust??? and then i'd see gains??

I'm either looking to remove the mid muffler on stockies... or leave it and put the CT cans on.

all I know is my exhaust from the CAT... on, is hurting me, and my headers are begging for some HELP

 

Yea, thats the issue we run into with headers. They have a 2.5" collector, and the rest of the piping is 2.25". Its stupid not to upgrade the rest.

 

well, the piping from the cat to the mid muffler looks pretty beefy considering its a stock system... so

SAY i got the XLR8 cat, left the piping to the mid muffler the same, then changed the piping from the mid muffler to the CT cans. and obv got the CT cans

what would u think that would add?

I want to keep the mid muffler for the clean sound and so i'll have a lil back pressure still for low end tq.

think that get me 10-15? whp

 

cause i wanna ice off this exhaust system early next year and then dyno it and get my 250WHP...

there's no if's ands or buts, this bitch is gonna put down 250WHP once i'm done with her

 

Id say upgrade to 2.5" from the headers back. Get a nice y-pipe. Pick up a magnaflow resonator to stick in place of the mid muffler and install the CT cans. I think you will be pleased.

 

i just don't want it to be loud in the cabin. which is why I may do the cat and the cans.... then see how i like it... if i want louder then do the custom piping.

 

Thats what the resonator is for.

 

i have a 14" magnaflow resonator and stock cans, and it is very G35ish sounding IMO.

 

ok so the ct header is 2.5" then the xlr8 cat is 2.5" then the (type S) exhaust pipe from the cat is 2.25" correct? How does even that work?

I'm thinking of BANG for $ here. so:

XLR8 cat
leave the 2.25" pipe from cat to mid muffler. (is 1/4 inch thattt restrictive)
then do the magnaflow midmuffler
and piping to the stokies... to see how it is..
and then go to the CT if i want more sound

 

just buy a catback, and highflow cat. bing you are done.

 

+1

 

and who makes them for the CL....

I thought that's why people do the cans only?

 

tanabe, comptech, greddy.

I prefer the tanabe mainly because I think it looks better, and I love the way it sounds.

That and I only paid 463 shipped for it from some place that went out of bidness

 

comptech makes a full catback???? um where can i find this again

I am affraid of it being too loud...
i'm not spending money to feel like a retard cause I don't like the result.

 

Not sure where you would get one from but here is how it looks


Just do a google search for 2001 cl exhaust, I am sure somethign will turn up.

 

lol you didnt know that. i think you can only get the axle-backs now. i dont think they make the full catback anymore. the only reason im able to get the b-pipe is because im getting it used from a member on the boards.

 

Hmm dunno, probably one of the reasons I went with tanabe instead of comptech.

 

Yea, CT used to make the B-pipe. I dont think they ever sold it as a package deal though.

 

i have the full comptech cat-back. trust me, it's not too loud. if you want to meet up, you can hear my car and judge for yourself

 

yea, i bet it sounds good. Comptech knew their stuff. If you cant find the B-pipe anymore, just custom fab one. or replace the stock mid-muff with an aftermarket resonator like a magnaflow.

 

any shop can custom fab the b-pipe. it's just a freakin pipe

 

and then put a resonator in the B-pipe

 

ill have the comptech headers, p2r test pipe, xlr8 high flow cat, and comptech muffles when they are delivered. Do i still need some custom piping to have a complete exhaust or is what i listed all i need?

 

If i were you i would just save your $ and wait until spring. No point doing your exhaust right before winter.

In the spring we'll have a meet and you can hear SG81's comptech and my exhaust. That's the best way to decide what you like.

 

good point i'll do that

 

yeah, assuming you drive your CL in the winter i agree w/ gnuts. wait til the spring. no point getting it all salted up now

 

A test pipe replaces the cat. So you'll want to use one or the other.

This is our exhaust:


Headers-cat------------resonator----(split into two pipes to mufflers)



If you want a complete 2.5" exhaust then you'll have to upgrade all the piping to 2.5". Our stock exhaust is 2.25".

 

but we're talking 1/4 inch... is it that much?

 

You will see gains with upgrading the diameter of the piping. Comptech's HP gains come from it being more free flowing (2.5" piping).

 

got it so i'm looking for 2.5" the whole way then... gotcha